One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,5,4)(3,7,8,6)(9,10,13,12)(11,15,16,14)(19,25)(20,27)(22,29)(23,31)(26,28)(30,32)(1,3,5,8)(2,6,4,7)(9,11,13,16)(10,14,12,15)(17,18,21,24)(19,22,26,30)(20,23,27,31)(25,29,28,32)(1,2,5,4)(3,6,8,7)(9,12,13,10)(11,14,16,15)(17,19)(18,22)(20,28)(21,26)(23,32)(24,30)(25,27)(29,31)(1,4,5,2)(3,6,8,7)(11,16)(14,15)(20,27)(23,31)(25,28)(29,32)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.